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Grade 11 - Biology

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  1. Chapter 13: Excretion

    13.1 Excretion
    2 Topics
    |
    1 Quiz
  2. 13.2 Urinary system
    4 Topics
    |
    1 Quiz
  3. Chapter 14: Coordination and control
    14.1 Mammalian nervous system
    4 Topics
  4. 14.2 Mammalian sense organ
    3 Topics
  5. 14.3 Mammalian hormones
    1 Topic
  6. 14.4 Homeostasis
    1 Topic
    |
    1 Quiz
  7. 14.5 Temperature control
    3 Topics
  8. 14.6 Blood glucose control
    1 Topic
  9. Chapter 15: Coordination and response in plants
    15.1 Coordination and response in plants
    3 Topics
  10. Chapter 16: Development of organisms and continuity of life
    16.0 Introduction on reproduction
  11. 16.1 Nuclear division
    3 Topics
  12. 16.2 Asexual and sexual reproduction
    3 Topics
    |
    1 Quiz
  13. 16.3 Sexual reproduction in flowering plants
    10 Topics
    |
    2 Quizzes
  14. 16.4 Sexual reproduction in humans
    8 Topics
    |
    3 Quizzes
  15. 16.5 AIDS
    1 Topic
    |
    1 Quiz
  16. Chapter 17: Inheritance
    17.1 Variation
    1 Topic
    |
    1 Quiz
  17. 17.2 DNA
    4 Topics
    |
    1 Quiz
  18. 17.3 Inheritance
    5 Topics
    |
    1 Quiz
  19. 17.4 Mutation
    3 Topics
    |
    1 Quiz
  20. 17.5 Selection
    4 Topics
  21. 17.6 Genetic modification
    3 Topics
    |
    1 Quiz
  22. CHAPTER 18: Biotechnology and genetic modification
    18.1 Biotechnology
    8 Topics
  23. 18.2 Genetic modification
    3 Topics
  24. Chapter 19: Relationships of organisms with one another and with the environment
    19.1 Energy flow
    4 Topics
    |
    1 Quiz
  25. 19.2 Nutrient cycles
    3 Topics
    |
    2 Quizzes
  26. 19.3 Ecosystems and biodiversity
    1 Topic
  27. 19.4 Effects of humans on ecosystems
    7 Topics
    |
    1 Quiz
  28. 19.5 Conservation
    3 Topics

Quizzes

Lesson 1, Topic 1
In Progress

13.1.1 Definition and excretory organs

Bhawna Soneeram February 17, 2023
Lesson Progress
0% Complete

Learning outcome:

Describe excretion as the removal of toxic materials and the waste products of metabolism from organisms.

Excretion is the process where metabolic wastes are eliminated from an organism.

In humans, this function is performed through the kidneys, lungs and skin. 

Video:

This table provides a concise overview of key excretory organs, their main functions, and the primary waste products they are responsible for eliminating from the body :